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1.发明公开公开(公告)号：US20240117620A1
公开(公告)日：2024-04-11
申请号：US18257650
申请日：2021-10-26
发明人： Stefan Blenke
IPC分类号： E03F3/06
CPC分类号： E03F3/06 , E03F2003/065
摘要： A lining tube for reconditioning a defective sewer pipe has an inner film tube, around which is disposed a radially expandable layer of fiber material that is impregnated with a curable reactive resin. The inner film tube has a connecting section that extends in longitudinal direction thereof and connects two circumferential portions of the inner film tube that run parallel to one another to give an inner film tube which is continuous over its circumference and has a defined nominal diameter. The connecting section has an intended fracture site that extends along the inner film tube and can be parted by introducing a pressure medium into the inner film tube in circumferential direction, in order to expand the inner film tube and the layer of fiber material disposed thereon radially beyond the nominal diameter. There is also described a method of producing and of installing such a lining tube.
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2.发明公开公开(公告)号：US20240117587A1
公开(公告)日：2024-04-11
申请号：US18257649
申请日：2021-10-26
发明人： Stefan Blenke , Milan Ebeling
IPC分类号： E02D29/12 , F16L55/165
CPC分类号： E02D29/128 , F16L55/1652 , F16L55/1656
摘要： A lining tube for restoring a defective sewer shaft which has a first shaft portion of a first diameter and an adjoining second shaft portion of an larger diameter. The lining tube has inner film tube and a radially expandable layer of fibrous material around the inner film tube and impregnated with a curable reactive resin. The inner film tube has a connecting portion which extends in the longitudinal direction and which connects two mutually parallel circumferential portions of the inner film tube to a circumferentially closed inner film tube. The connecting portion has a predetermined breaking point which extends along the inner film tube and can be separated in the circumferential direction by introducing a pressure medium into the inner film tube, in order to radially expand the inner film tube and the layer of fibrous material beyond their nominal diameter.
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